JAVA分页

一个简单的java分页小模块

public class Page {

    public static void main(String[] args) {
        Page pg=new Page();
        String str=pg.pagestr("http://www.abc.com?",195,11,10,8);
        System.out.print(str);
    }
//url连接，countdatas表数据总行数，currentpage第几页（0是第一页），everpage每页多少行,beforlaterln前后长度
    public String pagestr(String url,int countdatas,int currentpage,int everpage,int beforlaterln) {
        String page= "";
        int intpart = countdatas/everpage;//整数
        int remainderpart = countdatas%everpage;//余数
        int countpage = intpart;//取整数
        currentpage = currentpage<0 ? 0:currentpage;
        if(remainderpart==0){//余数判断
            currentpage=currentpage>countpage-1?countpage-1:currentpage;
            int pp=currentpage+1;
            String strbe="";
            int pagebefore=pp-beforlaterln-1;
            for(int i=pp; i > pagebefore; i--){
                if(i>0 && i"+i+""+strbe;
                }
            }
            if(pp<=1){strbe="";}else{strbe="首页"+"上一页"+strbe;}
            String strmid=""+pp+"";
            String strlater="";
            int pagelater=pp+beforlaterln;
            for(int i=pp; i < pagelater; i++){
                if(i"+(i+1)+"";
                }
            }
            if(pp>=countpage){}else{strlater+="下一页"+"尾页";}
            page=strbe+strmid+strlater;
        }else {
            countpage+=1;//总页数
            currentpage=currentpage>countpage-1?countpage-1:currentpage;
            int pp=currentpage+1;
            String strbe="";
            int pagebefore=pp-beforlaterln-1;
            for(int i=pp; i > pagebefore; i--){ 
                if(i>0 && i"+i+""+strbe;
                }
            }
            if(pp<=1){strbe="";}else{strbe="首页"+"上一页"+strbe;}
            String strmid=""+pp+"";
            String strlater="";
            int pagelater=pp+beforlaterln;
            for(int i=pp; i < pagelater; i++){
                if(i"+(i+1)+"";
                }
            }
            if(pp>=countpage){}else{strlater+="下一页"+"尾页";}
            page=strbe+strmid+strlater;
        }
        return "共"+countpage+"页"+page;
    }
    
}

运行后得到以下字符串

共20页首页
上一页
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
下一页
尾页

希望对大家有帮助，谢谢！